llvm-project/llvm/test/CodeGen/X86/GlobalISel/select-gep.mir

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# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=CHECK
--- |
define i32* @test_gep_i32(i32* %arr) {
%arrayidx = getelementptr i32, i32* %arr, i32 5
ret i32* %arrayidx
}
...
---
name: test_gep_i32
alignment: 4
legalized: true
regBankSelected: true
selected: false
# CHECK-LABEL: name: test_gep_i32
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gr64, preferred-register: '' }
# CHECK-NEXT: - { id: 1, class: gr64_nosp, preferred-register: '' }
# CHECK-NEXT: - { id: 2, class: gr64, preferred-register: '' }
registers:
- { id: 0, class: gpr }
- { id: 1, class: gpr }
- { id: 2, class: gpr }
# CHECK: body:
# CHECK: %1 = MOV64ri32 20
# CHECK-NEXT: %2 = LEA64r %0, 1, %1, 0, _
body: |
bb.1 (%ir-block.0):
liveins: %rdi
%0(p0) = COPY %rdi
%1(s64) = G_CONSTANT i64 20
%2(p0) = G_GEP %0, %1(s64)
%rax = COPY %2(p0)
RET 0, implicit %rax
...